Answer:
104
Step-by-step explanation:
We construct a formula that represents this information:
(1/8) * CLASS = 13
Let's let CLASS = X
So,
(1/8) * X = 13
Now, we solve for X, by multiplying both sides of the equation by 8 (we do this when we have a fraction and want to "cancel out" the fraction).
8 * (1/8) * X = 13 * 8
X = 104
So, there are 104 students in the class.